I know I've seen a thread on the site somewhere that talked about the effects of heat buildup (or cold weather) on a gun stored in a car. I tried searching the forums and could not find it. Any suggestions? Links? My concern is that my employer does not allow carry on the premises. I have to store my (polymer) gun in the vehicle. Hot weather can get car interior well over 120-130 degF. Of course, cold weather can get as low as the current conditions. How does heat/cold in the vehicle affect the gun and the ammo? How does cycling the temperature of the gun from normal room temperature to the extremes every day affect it?